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arXiv 1310.6284math.RT
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关于共形Galilei代数上的单模

On simple modules over conformal Galilei algebras

Rencai Lu, Volodymyr Mazorchuk, Kaiming Zhao

摘要:

研究了两类1-维共形Galilei代数的不可约表示。我们构造了一个函子,它将Heisenberg子代数上中心荷非零的单模变换为共形Galilei代数上的单模。这可以被看作是振荡器表示的模拟。我们用振子表示来描述共形Galilei代数上的简单最高权模的结构。我们对有限维Heisenberg代数上具有有限维权空间的单权模进行了分类,并利用这种分类和振子表示的性质对共形Galilei代数上具有有限维权空间的单权模进行了分类.

英文摘要:

We study irreducible representations of two classes of conformal Galilei algebras in 1-spatial dimension. We construct a functor which transforms simple modules with nonzero central charge over the Heisenberg subalgebra into simple modules over the conformal Galilei algebras. This can be viewed as an analogue of oscillator representations. We use oscillator representations to describe the structure of simple highest weight modules over conformal Galilei algebras. We classify simple weight modules with finite dimensional weight spaces over finite dimensional Heisenberg algebras and use this classification and properties of oscillator representations to classify simple weight modules with finite dimensional weight spaces over conformal Galilei algebras.

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